Uninterruptible power supply



FIG. 1 is a perspective view of an uninterruptible power supply design of the present disclosure;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a back elevational view thereof;

FIG. 6 is a left side elevational view thereof; and,

FIG. 7 is a right side elevational view thereof.

The broken lines and the unshaded areas within the broken lines illustrate portions of the uninterruptible power supply and form no part of the claimed design. 

CLAIM The ornamental design for an uninterruptible power supply, as shown and described. 